Finding the Fourth Proportional to 2,355.69, 3,250.95 and 1,307.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.69 : 3,250.95 = 1,307.75 : x
2. Step 2: Convert to fraction form
   2,355.69/3,250.95 = 1,307.75/x
3. Step 3: Cross multiply
   2,355.69x = 3,250.95 × 1,307.75
4. Step 4: Simplify right side
   2,355.69x = 4,251,429.86
5. Step 5: Solve for x
   x = 4,251,429.86/2,355.69
6. Step 6: Final answer
   x = 1,804.75